CN205941692U - Portable direct current resistance, integrative device of transformation ratio test - Google Patents
Portable direct current resistance, integrative device of transformation ratio test Download PDFInfo
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- CN205941692U CN205941692U CN201620405861.2U CN201620405861U CN205941692U CN 205941692 U CN205941692 U CN 205941692U CN 201620405861 U CN201620405861 U CN 201620405861U CN 205941692 U CN205941692 U CN 205941692U
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- 238000012360 testing method Methods 0.000 title claims abstract description 89
- 230000009466 transformation Effects 0.000 title abstract 3
- 238000010079 rubber tapping Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 4
- 238000007639 printing Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
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Abstract
Portable direct current resistance, integrative device of transformation ratio test, including power and switch, its characterized in that still includes wiring unit, earthing terminal, the control unit and display element, the control unit link to each other with singlechip in the device, the singlechip be connected with wiring unit and display element respectively, the control unit with print the unit and link to each other, earthing terminal one end link to each other with the device, earthing terminal other end ground connection, the earthing terminal is used for protection device and is surveyed the safety of device. The utility model provides a pair of portable direct current resistance, integrative device of transformation ratio test has convenient to carry, easy operation, quick laborsaving characteristics.
Description
Technical field
This utility model is related to a kind of Portable direct leakage resistance, no-load voltage ratio testing integrated device, belongs to power system transformer
Field tests.
Background technology
Important pilot project in transformer test during DCR of Transformer test.Test transformer winding and sleeve
D.C. resistance, can check that welding quality, lead and winding joint welding quality, the voltage of winding inner lead joint divide
Connect that switch each tap position and lead contact with sleeve pipe is good, parallel branch connect whether correctly, transformator current carrying part
Have or not open circuit, loose contact and winding and have or not short circuit phenomenon；Transformer voltage ratio be parallel operation of transformers essential condition it
One, for the transformator after installing, no-load voltage ratio test is mainly inspection position of tapping switch and each outlet terminal mark and transformator
Whether famous brand is compared correct, and works as after transformator road breaks down, checks that transformator whether there is turn-to-turn short circuit etc..Therefore to change
Depressor D.C. resistance, each phase parameter of no-load voltage ratio test have a true, accurate assurance it is necessary to carry out unidirectional current to transformator
Resistance, no-load voltage ratio are specifically measured.This for accurate evaluation transformator safety it is ensured that transformator reliability service have very heavy
The meaning wanted.Carrying out DCR of Transformer test and its transformer voltage ratio test process, the requirement according to surveyed project is not
Same, need with different p-wires, surveyed transformator to be carried out testing wiring and thread-changing respectively, to meet corresponding test condition.
During as carried out D.C. resistance test, no-load voltage ratio, corresponding instrument for measuring DC resistance, no-load voltage ratio test are adopted according to transformer voltage grade
Instrument, is fixed on p-wire on Three-Phase Transformer winding, on transformator high and low pressure terminal simultaneously.Traditional transformer dc electricity
In resistance, no-load voltage ratio test, by testing crew, the experimental test line of test event is connected on transformator high and low pressure winding, due to
Have load transformer tap gear more, the test thread-changing of high and low pressure winding needs to carry out repeatedly, in connecting test line process due to
Sleeve surface cleannes and firmness, often make p-wire sufficiently not contact firmly with sleeve pipe, and this allows for testing
Muscle power carries out repeatedly connecting test line to reach test condition to personnel attrition in a large number.Traditional transformer D.C. resistance, no-load voltage ratio test
During there are the following problems：One is to there is uncertain factor, the contact jail of usual p-wire with being manually attached p-wire
Gu degree is it is impossible to meet test request；Two is that testing crew needs repeatedly to climb transformator during carrying out p-wire thread-changing,
Consume one's strength, dangerous factor；Three is that the testing time is longer, generally requires 1 hour under normal circumstances（DCR of Transformer
Test generally requires 30min；Transformer voltage ratio test generally requires 30min）；Four is to need personnel many（2-3 people is needed to complete）,
And inefficiency.
In sum, in order to ensure personal security in electrical network and process of the test, quick, convenient test is needed to become according to instrument
Depressor parameter, using a kind of novel portable D.C. resistance, no-load voltage ratio testing integrated device, this device is easy to carry, simple to operate,
And can need quickly to connect p-wire according to testing crew, high working efficiency.
Utility model content
This utility model provides a kind of Portable direct leakage resistance, no-load voltage ratio testing integrated device, is to overcome and is tried using multiple stage
The equipment of testing carries out DCR of Transformer, no-load voltage ratio test, solves testing crew simultaneously and carries out DCR of Transformer, no-load voltage ratio survey
Repeatedly change during examination that test connection brings dangerous, efficiency is low, the problems such as consume one's strength big.
This utility model is achieved through the following technical solutions：
Portable direct leakage resistance, no-load voltage ratio testing integrated device, including power supply and switch it is characterised in that also including controlling list
Unit, earth terminal and fan, described control unit is connected with the single-chip microcomputer in device, described single-chip microcomputer respectively with wiring units
Connect with display unit, described control unit is connected with print unit, and described earth terminal one end is connected with device, earth terminal
The other end is grounded, and described fan is located inside device, carries out air discharging and radiating to device.
Wherein, described control unit includes tapping gear, selection key and function button, and described tapping gear is used for
Test transformer no-load voltage ratio.
Wherein, described single-chip microcomputer is to integrate D.C. resistance test module and no-load voltage ratio test module, is become
Depressor parameter testing.
Wherein, described wiring units are binding post, for the test connection in stationary transformer test.
Wherein, described display unit be display screen, for show DCR of Transformer and no-load voltage ratio test event and
Data message.
Wherein, described function button includes feeler switch, determination key, reset key and printing key, and described reset key is used for
To device electric discharge, thus protection device and personal security.
Compared with prior art, the beneficial effects of the utility model are：The Portable direct leakage resistance of this utility model offer,
No-load voltage ratio testing integrated device, has easy to carry, simple to operate, fast power-saving feature；Operation button, can adopt portable
Test function is chosen the test event required for transformator by D.C. resistance, no-load voltage ratio integrated device, and device passes through testing button
Automatically carry out D.C. resistance or no-load voltage ratio test job, make DCR of Transformer, no-load voltage ratio test job, time saving and energy saving, work
Efficiency high；It is arranged on the fan within device and device can be carried out with air discharging and radiating, the service life of extension fixture.
Brief description
Fig. 1 is this utility model Portable direct leakage resistance, the structural representation of no-load voltage ratio testing integrated device.
Fig. 2 is this utility model Portable direct leakage resistance, the structured flowchart of no-load voltage ratio testing integrated device.
In figure：1. power supply, 2. wiring units, 3. earth terminal, 4. control unit, 41. tapping gears, 42. selection keys,
43. function buttons, 5. display unit, 6. print unit, 7. switch.
Specific embodiment
With reference to embodiment, this utility model is described in further detail.Hereinafter implement to be only tool of the present utility model
Body implementation example, but design concept of the present utility model is not limited thereto, all using this design, this utility model is carried out non-
Substantial change, all should be within this utility model protection domain.
Embodiment
As shown in figure 1, Portable direct leakage resistance, no-load voltage ratio testing integrated device, including power supply 1 and switch 7, also include wiring
Unit 2, earth terminal 3, control unit 4 and display unit 5, control unit 4 is connected with the single-chip microcomputer in device, single-chip microcomputer respectively with
Wiring units 2 and display unit 5 connect, and single-chip microcomputer is to integrate D.C. resistance test module and no-load voltage ratio test module,
Carry out transformer parameter test, control unit 4 is connected with print unit 6, earth terminal 3 one end is connected with device, and earth terminal 3 is another
End ground connection, earth terminal 3 is used for the safety of protection device and tested device.
Wherein, control unit 4 includes tapping gear 41, selection key 42 and function button 43, and tapping gear 41 is used for surveying
Examination transformer voltage ratio, function button 43 includes feeler switch, determination key, reset key and printing key, and reset key is used for device electric discharge,
Thus protection device and personal security.Wiring units 2 are binding post, for the test connection in stationary transformer test.Display
Unit 5 is display screen, for showing the test event data information of DCR of Transformer and no-load voltage ratio, also sets inside this device
There is fan, air discharging and radiating, the physical life of extension fixture can be carried out.
Power supply 1 major function is offer device power supply, and holding meanss persistently charge it is ensured that device normal work.Wiring list
Unit 2 adopts binding post mode, for the test connection in stationary transformer test.Wiring units 2 are used for connection transformer and survey
Trial assembly is put, and wiring units 2 guarantee test wiring is reliably connected, and increases contact area.Wiring quantity is according to the concrete test item of test
Mesh is determined, and greatly reduces transformator and tests D.C. resistance, no-load voltage ratio conversion time simultaneously, and earth terminal 3 guarantees that device is reliable
Ground connection, protection device and device being tested safe operation.
As shown in Fig. 2 device passes through wiring units 2 receipt signal, the DCR of Transformer receiving, no-load voltage ratio test item
Mesh signal shows on display unit 5, and control unit 4 selects to need the project of test, is then carried out at data by single-chip microcomputer
Reason, reads data message by display unit 5, finally carries out data-printing by print unit 6 again.
The concrete operation method of this device is as follows：
Control unit 4 is selected according to test event, and wiring units 2 and earth terminal 3 connect correctly, switches on power 1, beats
Switch 7, display unit 5 can show D.C. resistance, no-load voltage ratio test event, carries out project alternativess according to test requirements document, starts control
Unit 4 feeler switch processed, device carries out normal work, after the completion of test job, starts control unit 4 reset key it is ensured that device is complete
Full electric discharge, after the completion of electric discharge, tester can carry out changing test connection.
Claims (5)
1. Portable direct leakage resistance, no-load voltage ratio testing integrated device, including power supply and switch it is characterised in that also including controlling list
Unit, earth terminal and fan, described control unit is connected with the single-chip microcomputer in device, described single-chip microcomputer respectively with wiring units
Connect with display unit, described control unit is connected with print unit, and described earth terminal one end is connected with device, earth terminal
The other end is grounded, and described fan is located inside device, and device is carried out with air discharging and radiating, and described single-chip microcomputer is by D.C. resistance
Test module and no-load voltage ratio test module integrate, and carry out transformer parameter test.
2. Portable direct leakage resistance according to claim 1, no-load voltage ratio testing integrated device are it is characterised in that described control
Unit includes tapping gear, selection key and function button, and described tapping gear is used for test transformer no-load voltage ratio.
3. Portable direct leakage resistance according to claim 1, no-load voltage ratio testing integrated device are it is characterised in that described wiring
Unit is binding post, for the test connection in stationary transformer test.
4. Portable direct leakage resistance according to claim 1, no-load voltage ratio testing integrated device are it is characterised in that described display
Unit is display screen, for showing the test event data information of DCR of Transformer and no-load voltage ratio.
5. Portable direct leakage resistance according to claim 2, no-load voltage ratio testing integrated device are it is characterised in that described function
Button includes feeler switch, determination key, reset key and printing key, and described reset key is used for device electric discharge, thus protection device
And personal security.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620405861.2U CN205941692U (en) | 2016-05-06 | 2016-05-06 | Portable direct current resistance, integrative device of transformation ratio test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620405861.2U CN205941692U (en) | 2016-05-06 | 2016-05-06 | Portable direct current resistance, integrative device of transformation ratio test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205941692U true CN205941692U (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620405861.2U Active CN205941692U (en) | 2016-05-06 | 2016-05-06 | Portable direct current resistance, integrative device of transformation ratio test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823928A (en) * | 2016-05-06 | 2016-08-03 | 国网辽宁省电力有限公司丹东供电公司 | Portable direct current resistance and transformation ratio test integrated device and operation method |
-
2016
- 2016-05-06 CN CN201620405861.2U patent/CN205941692U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823928A (en) * | 2016-05-06 | 2016-08-03 | 国网辽宁省电力有限公司丹东供电公司 | Portable direct current resistance and transformation ratio test integrated device and operation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |